Skip Navigation LinksHome > August 2010 - Volume 32 - Issue 6 > The Novel WT1 Gene Mutation p.H377N Associated to Denys-Dras...
Journal of Pediatric Hematology/Oncology:
doi: 10.1097/MPH.0b013e3181e5e20d
Clinical and Laboratory Observations

The Novel WT1 Gene Mutation p.H377N Associated to Denys-Drash Syndrome

Guaragna, Mara Sanches BSc*; Soardi, Fernanda Caroline PhD*; Assumpção, Juliana Godoy PhD; Zambaldi, Lílian de Jesus Girotto BSc; Cardinalli, Izilda Aparecida MD, PhD; Yunes, José Andrés PhD; de Mello, Maricilda Palandi PhD*; Brandalise, Silvia Regina MD, PhD† ‡; Aguiar, Simone dos Santos MD, PhD

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Denys-Drash syndrome (DDS, Online Mendelian Inheritance in Man number 194080) is a rare human developmental disease generally occurring in 46,XY individuals characterized by the combination of disorder of sex development, early onset nephropathy, and Wilms' tumor (WT). DDS is mainly caused by mutations in the WT1 gene. This report describes a novel WT1 gene mutation in a DDS patient. Sequencing the WT1 gene revealed a heterozygous transversion CAT>AAT within exon 8, causing the substitution of an asparagine for a histidine at residue 377. The p.H377N mutation is predicted to diminish the WT1 protein DNA-binding affinity as it might disrupt the normal zinc finger 2 conformation.

© 2010 Lippincott Williams & Wilkins, Inc.


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